How do you unlock everything on the monster jam video game

Get alot of monster points to unlock trucks, then get 1st in all events for some more of the trucks, then beat the Las Vegas finals. extras.....Run the Sam Boyd Stadium race in under 10 seconds. Unlock Iron outlaw by running mall madness in less than 2:30, secret : theres a short cut through the food court 1/2 way through the mall! Unlock the last truck (Black Smith) by using 4 players in any race and it should unlock it!